Funded by The Bill & Melinda Gates Foundation, the Literacy Design Collaborative (LDC) and Math Design Collaborative (MDC) offer a set of instructional and formative assessment tools in literacy and math, which were developed to help educators better prepare all students to meet the Common Core State Standards (CCSS) and succeed beyond high school. Following two years of extensive data collection in eight sites throughout the country, Research for Action (RFA) is producing four case studies to illustrate how the LDC and MDC tools have been adopted in different settings and contexts, and which approaches and supports have contributed to the successful adoption and use of the tools. The case studies provide a set of "road maps" for other sites that will be adopting or scaling up the tools. They are grounded in the three overlapping conditions found to be necessary for effective scale-up of these tools: (1) Effective leadership at multiple levels; (2) Alignment with the CCSS, curricula, and state assessments; and (3) Meaningful and ongoing professional learning opportunities (PLOs). These conditions provide the organizing framework for the case studies and guide RFA's analysis of the strategic approaches undertaken by state, regional, local, and network entities that enabled strong initial implementation. Each case study illustrates how the tools were implemented and scaled under a specific set of circumstances that are likely to be applicable to many other sites. As such, they are intended to inform further exploration and discussion on how to effectively rollout the LDC and MDC tools across a wide range of districts and schools. This document describes how Kenton County, Kentucky used district-level leadership to roll out the LDC and MDC tools. It is comprised of the following sections: (1) A brief overview of the educational reform context in Kentucky and Kenton County; (2) A description of the central role of Kenton County district leaders in shaping the early success of MDC and LDC implementation; and (3) An overview and description of seven district-led strategies that have impacted early adoption and success of the MDC and LDC initiatives.